Change Windows Photo Gallery Display Size

Hello,

Using Vista, I view photos using Windows Photo Gallery. I am able to change
the 'display size' (using the zoom icon) to magnify an individual image but
when I move to the next image the display size resets to the default zoom and
I manually increase the zoom.

Is it possible to change the default zoom to what I want (and, if so, how)?
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Thanks,
MarkN